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Unit 4B Cell Growth and Reproduction Test (E) 1. As a cell becomes larger, its A. volume increases faster than its surface area. B. volume increases, but its surface area stays the same. 2. Compared to small cells, large cells have more trouble A. getting materials it needs B. dividing. 3. The process by which a cell divides into two daughter cells is called A. mitosis. B. cell division. 4. When during the cell cycle are chromosomes visible? A. only during cell division B. only when they are being replicated 5. When during the cell cycle is a cell’s DNA replicated? A. S phase B. M phase Figure 10–1 6. Cell division is represented in Figure 10–1 by the letter A. C. B. D. 7. The cell cycle is the A. series of events that cells go through as they grow and divide. B. time it takes for one cell to undergo mitosis. Figure 10–2 8. The structure labeled A in Figure 10–2 is called the A. sister chromatid. B. centromere. 9. The structures labeled B in Figure 10–2 are called A. centrioles. B. sister chromatids. 10. During which phase of mitosis do the chromosomes line up along the middle of the dividing cell? A. metaphase B. prophase 11. Which is the right order of mitosis? A. prophase, metaphase, anaphase, telophase B. interphase, prophase, metaphase, telophase 12. What is the role of the spindle during mitosis? A. It breaks down the nuclear membrane. B. It helps separate the chromosomes. 13. The two main stages of cell division are called A. cytokinesis and mitosis. B. mitosis and interphase. 14. Plant cells have A. a cell plate. B. centrioles. 15. During normal mitotic cell division, a parent cell having four chromosomes will produce two daughter cells, each containing A. two chromosomes. B. four chromosomes. 16. What happens when cells come into contact with other cells? A. They produce cyclins. B. They stop growing. 17. Cyclins are a family of closely related proteins that A. work to heal wounds. B. regulate the cell cycle. 18. Cancer is a disorder in which some cells have lost the ability to control their A. surface area. B. growth rate. 19. If an organism’s diploid number is 12, its haploid number is A. 6. B. 12. 20. Gametes have A. homologous chromosomes. B. one allele for each gene. 21. Gametes are produced by the process of A. meiosis. B. mitosis. Figure 11–3 22. What is shown in Figure 11–3? A. anaphase I of meiosis B. crossing-over 23. What happens between meiosis I and meiosis II that reduces the number of chromosomes? A. Replication occurs twice. B. Replication does not occur. 24. Unlike mitosis, meiosis results in the formation of A. haploid cells. B. body cells. 25. Unlike mitosis, meiosis results in the formation of A. four genetically identical cells. B. four genetically different cells. Figure 10–4 26. What is the chromosome number of the cell shown in Figure 10–4? 27. Identify the structures labeled X and Y in Figure 10–4. 28. List the correct order for the diagrams in Figure 10–4. Figure 10–6 29. 30. Look at Figure 10–6. Which diagram shows cancer cells? What can happen if these cells are left untreated? Figure 11–6 31. In Figure 11–6, what is the structure labeled X in stage A? 32. During which stage might new allele combinations form? Unit 4 Test--- Bio IB Answer Section MULTIPLE CHOICE 1. ANS: OBJ: 2. ANS: OBJ: 3. ANS: OBJ: 4. ANS: OBJ: 5. ANS: OBJ: 6. ANS: OBJ: 7. ANS: OBJ: 8. ANS: OBJ: 9. ANS: OBJ: 10. ANS: OBJ: 11. ANS: OBJ: 12. ANS: OBJ: 13. ANS: OBJ: 14. ANS: OBJ: 15. ANS: OBJ: 16. ANS: OBJ: 17. ANS: OBJ: 18. ANS: OBJ: 19. ANS: OBJ: 20. ANS: OBJ: 21. ANS: OBJ: 22. ANS: A 10.1.1 A 10.1.1 B 10.1.2 A 10.2.1 A 10.2.1 B 10.2.1 A 10.2.1 B 10.2.2 B 10.2.2 A 10.2.2 A 10.2.2 B 10.2.2 A 10.2.2 A 10.2.2 B 10.2.2 B 10.3.1 B 10.3.2 B 10.3.3 A 11.4.1 B 11.4.1 A 11.4.2 B PTS: STA: PTS: STA: PTS: STA: PTS: STA: PTS: STA: PTS: STA: PTS: STA: PTS: STA: PTS: STA: PTS: STA: PTS: STA: PTS: STA: PTS: STA: PTS: STA: PTS: STA: PTS: STA: PTS: STA: PTS: STA: PTS: STA: PTS: STA: PTS: STA: PTS: 1 3.3.10.B.3 1 3.3.10.B.3 1 3.3.10.C.1 1 3.3.10.C.1 1 3.3.10.B.3 1 3.3.10.C.1 1 3.3.10.B.3 1 3.3.10.B.2 1 3.3.10.B.2 1 3.3.10.C.1 1 3.3.10.C.1 1 3.3.10.B.2 1 3.3.10.C.1 1 3.3.10.B.3 1 3.3.10.C.1 1 3.3.10.B.3 1 3.3.10.B.3 1 3.3.10.B.3 1 3.3.10.C.1 1 3.3.10.C.1 1 3.3.10.C.1 1 DIF: A REF: p. 242 DIF: B REF: p. 243 DIF: B REF: p. 243 DIF: A REF: p. 244 DIF: A REF: p. 245 DIF: B REF: p. 245 DIF: B REF: p. 245 DIF: B REF: p. 244 DIF: B REF: p. 244 DIF: A REF: p. 248 DIF: A REF: p. 246 DIF: A REF: p. 247 DIF: A REF: p. 244 DIF: E REF: p. 248 DIF: E REF: p. 248 DIF: B REF: p. 250 DIF: A REF: p. 251 DIF: A REF: p. 252 DIF: A REF: p. 275 DIF: E REF: p. 275 DIF: B REF: p. 276 DIF: A REF: p. 276 | p. 277 OBJ: 23. ANS: OBJ: 24. ANS: OBJ: 25. ANS: OBJ: 11.4.2 B 11.4.2 A 11.4.3 B 11.4.3 STA: PTS: STA: PTS: STA: PTS: STA: 3.3.10.C.1 1 3.3.10.C.1 1 3.3.10.C.1 1 3.3.10.C.1 DIF: E REF: p. 277 DIF: B REF: p. 278 DIF: A REF: p. 278 PTS: 1 DIF: B STA: 3.3.10.B.2 27. ANS: X is the centriole; Y is a spindle fiber. REF: p. 247 OBJ: 10.2.2 PTS: 1 OBJ: 10.2.2 28. ANS: D, A, C, B REF: p. 246 | p. 247 OTHER 26. ANS: Four DIF: B STA: 3.3.10.B.2 PTS: 1 DIF: B REF: p. 246 | p. 247 OBJ: 10.2.2 STA: 3.3.10.C.1 29. ANS: Diagram A shows cancer cells because it shows cells that are not growing in an organized way. PTS: 1 DIF: A REF: p. 252 OBJ: 10.3.3 STA: 3.6.12.B.2 30. ANS: They can break loose from the mass they are now a part of and spread throughout the body, disrupting normal activities and causing serious medical problems. PTS: 1 DIF: A STA: 3.2.10.B.3 31. ANS: The structure is a tetrad. REF: p. 252 OBJ: 10.3.3 PTS: 1 DIF: E REF: p. 276 OBJ: 11.4.2 STA: 3.3.10.C.1 32. ANS: New allele combinations might form during stage A, which is prophase I. PTS: 1 STA: 3.3.10.C.1 DIF: E REF: p. 276 OBJ: 11.4.2